Improvement in bake-ovens



L HALL.

Bakers Oven.

No. 108,258. Patented Oct 11, 1870.

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- section of the same.

UNITED STATES PATENT OFFICE.

JAMES HALL, OF CINCINNATI, OHIO.

IMPROVEMENT IN BAKE-OVENS.

Specification forming part of Letters Patent N 0. 108,258, dated October11, 1870.

To all whom it may concern:

Be it known that I, JAMES HALL, of Oincinnati, Hamilton county, State ofOhio, have invented a certain new and useful Improvement in RevolvingReel Bake-Ovens; and I hereby declare the following to be a sufiicientlyfull, clear, and exact description thereof to enable one skilled in theart to which my invention appertains to make and use it, reference beinghad to the accompanying drawing, making part of this specification.

My invention relates to the class of bakeovens which are fitted withrevolving reels carrying swinging or gravitating trays, upon which thebread to be baked is placed; and consists in the provision of an openfurnace for the oven, which, in connection with peculiarly-arrangedflues, will heat the oven without permitting the smoke, dirt, orash-dust to rise among the trays, and enables the oven to bake withincreased rapidity and economy of fuel, ascompared with thefurnaces withclosed arched tops or covers heretofore used in this class ofbake-ovens.

Figure l is a vertical section, from front to rear, of a revolving reelbake-oven embodying my invention. Fig. 2 is a vertical cross- Fi g. 3 isa sectional plan through line A B, Fig. 1.

The revolving reel 0 is journaled on the walls of the oven, as shown,and is provided with the customary swinging trays D. E is the openingthrough which the bread to be baked is inserted, and withdrawn whenbaked. F is the rising flue or chimney. G is the furnace orfire-chamber. It is entirely open on top, the gases emitted from itbeing permitted to pass freely around and among the trays of the reel,and escape by way of the side openings h of the horizontal flues H H,leading and discharging into the chimney F. At the back of the furnace Gis a pit, I, for the collection of ashes, dirt, and other heavyparticles, which are carried for a short distance by the current, whichrapidly passes through the grate-bars when the fire is stirred up. Atthe back of the furnace I provide a horizontal flue,

J, which communicates with the chimney F.

This flue, being low, and having a powerful draft, entirely prevents thesmoke, ash-dust, &c., from rising among the trays, and carries it intothe chimney. This dust, &c., on its way to the chimney J from the fire,may in part fall into the pit I, provided for it. This provision of flueJ entirely prevents anything bnt pure light gases from rising into thebaking-chamber.

Gas-coke is used preferably as fuel for this bake-oven, and it will beseen that, in consequence of the products of combustion being permittedto escape directly into the bakingchamher from the fire, and notconfined by an inclosed chamber and fines, this oven can be heated morerapidly, and kept at the required temperature at much less expense offuel, than any revolving reel bake-oven heretofore in use.

I claim- Arevolving reel bake-oven constructed with an open fireplace orfurnace, G, back flue J, top tlues H H h, and chimney F, constructed andarranged substantially in the manner and for the purpose specified.

In testimony of which invention I hereunto set my hand.

JAMES HALL.

Witnesses:

. FRANK MILLWARD, J. L. WARTMANN.

